Geolocation cleanup: use unique_ptr<>s and rename New{WlanApi/PollingPolicy} to CreateBla()

device/geolocation/wifi_data_provider_common.h

Index: device/geolocation/wifi_data_provider_common.h
diff --git a/device/geolocation/wifi_data_provider_common.h b/device/geolocation/wifi_data_provider_common.h
index a569af1e01dfc23608eacc0c349ce87db345de8c..44a312cb4eda1b1e1c405305e7df4a078f852c90 100644
--- a/device/geolocation/wifi_data_provider_common.h
+++ b/device/geolocation/wifi_data_provider_common.h
@@ -53,9 +53,9 @@ class DEVICE_GEOLOCATION_EXPORT WifiDataProviderCommon
   // TODO(mcasas): change return types and possibly names of these two methods,
   // see https://crbug.com/714348.
   // Returns ownership.
-  virtual WlanApiInterface* NewWlanApi() = 0;
+  virtual std::unique_ptr<WlanApiInterface> CreateWlanApi() = 0;
   // Returns ownership.
-  virtual WifiPollingPolicy* NewPollingPolicy() = 0;
+  virtual std::unique_ptr<WifiPollingPolicy> CreatePollingPolicy() = 0;
 
  private:
   // Runs a scan. Calls the callbacks if new data is found.